• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 161
  • 71
  • 39
  • 11
  • 9
  • 9
  • 9
  • 9
  • 9
  • 9
  • 1
  • 1
  • 1
  • 1
  • 1
  • Tagged with
  • 334
  • 334
  • 72
  • 72
  • 67
  • 53
  • 46
  • 35
  • 35
  • 27
  • 24
  • 22
  • 21
  • 20
  • 19
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Studies on the soil microfungi of Wisconsin prairies

Orpurt, Philip Arvid, January 1954 (has links)
Thesis (Ph. D.)--University of Wisconsin, 1954. / Typewritten. Vita. Bibliography: l. 127-132.
2

Bacterial growth in soils effects of matric water potential and nutrient transport /

McAneney, Kevin John. January 1979 (has links)
Thesis--University of Wisconsin--Madison. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
3

Factors influencing mechanisms of soil aggregation by microorganisms

Harris, Robin F. January 1964 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1964. / Typescript. Abstracted in Dissertation abstracts, v.25 (1964) no. 6, p. 3244. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 140-156).
4

Isolation of soil acrasieae and their distribution in nature

Cavender, James Cunningham, January 1961 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1961. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 109-112).
5

Size fractionation of bacterial functional diversity within soils

Kinneer, Krista L. January 1999 (has links)
Thesis (M.S.)--West Virginia University, 1999. / Title from document title page. Document formatted into pages; contains x, 68 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 47-48).
6

Influences on species richness and composition of belowground communities at multiple spatial scales

Nielsen, Uffe Nygaard. January 2008 (has links)
Thesis (Ph.D.)--Aberdeen University, 2008. / Title from web page (viewed on Mar. 2, 2009). Includes bibliographical references.
7

Isolation and characterization of humus-utilizing bacteria from Kansas soils

Cooper, Ronda Fern. January 1966 (has links)
LD2668 .T4 1966 C66 / Master of Science
8

PHYSIOLOGICAL AND BIOCHEMICAL CHARACTERISTICS OF A FAST-GROWING STRAIN OF LUPINE RHIZOBIA ISOLATED FROM THE SONORAN DESERT (NITROGEN FIXATION, MEXICO).

MILLER, MARIBETH SCHLINKERT. January 1985 (has links)
An effective, fast-growing strain of Rhizobium was isolated from a species of Lupinus native to the Sonoran desert near San Felipe, Baja, Mexico (generation time, 3.6 h). Bacteria isolated from the roots of lupines are normally slow growing, however, Lupine 43, is a fast grower, possesses multiple flagella and produces acid in a defined medium. In comparison to a slow-growing lupine strain, Nitragin 96A11, Lupine 43 has a low intrinsic resistance to antibiotics and is able to utilize a wide range of carbon and nitrogen sources. Field and incubator studies were conducted to determine if the adaptation of the characteristics of fast-growing strains enables this strain to survive under the desert conditions of the southwestern United States. In the field, where no moisture was added after initial inoculation, Lupine 43 survived in significantly higher numbers than 96A11 for the first two weeks of the low (19C) and the first month of the high (35C) temperature study. In a laboratory study, at a constant moisture level of 1/3 bar, differences in survival between the two strains were dependent on temperature, pH and soil texture.
9

Analysis of tetracycline resistance in compost bacilli

Woodward, Rebecca Stanton Wain January 1994 (has links)
No description available.
10

The effect of improved fallow residue quality on nitrous oxide emissions from tropical soils

Millar, Neville January 2002 (has links)
No description available.

Page generated in 0.0598 seconds